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Efficient software bitstream rate generator for video server

a software bitstream rate and video server technology, applied in the field of information distribution systems, can solve the problems of high cost, relatively complex custom hardware and/or parallel processing techniques,

Active Publication Date: 2003-06-19
COX COMMUNICATIONS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, such custom hardware and / or parallel processing techniques are relatively complex and, therefore, costly.

Method used

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  • Efficient software bitstream rate generator for video server
  • Efficient software bitstream rate generator for video server
  • Efficient software bitstream rate generator for video server

Examples

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Embodiment Construction

[0015] The invention is described within the context of a video on demand (VOD) system. Such a system is disclosed in U.S. Pat. No. 6,253,375, issued Jun. 26, 2001, and herein incorporated by reference in its entirety. The video information supplied by the VOD system is typically formatted in accordance with the MPEG (Moving Pictures Experts Group) standards, such as ISO / IEC 11172 (MPEG-1) and ISO / IEC 13818 (MPEG-2), both of which are incorporated by reference in their entireties. However, it will be appreciated by those skilled in the art that the teachings of this disclosure may be readily applied to other non-VOD systems, and to systems utilizing other standards for conveying information to a plurality of users. Such other standards include the American Television Standards Committee (ATSC) and European Digital Video Broadcasting (DVB) digital television and communication related standards.

[0016] The above overcomes the disadvantages of the prior art by providing a rate generator...

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PUM

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Abstract

An apparatus and a method for constraining the delivery rate of a plurality of bitstreams, such as MPEG bitstreams using a single software process.

Description

[0001] 1. Field of the Invention[0002] The invention relates to information distribution systems. More particularly, the invention relates to an apparatus and a method for a software rate generator for serving bitstreams to multiple users.[0003] 2. Description of the Related Art[0004] In many communication systems the data to be transmitted is compressed so that the available bandwidth is used more efficiently. For example, the moving pictures expert group (MPEG) has promulgated several standards relating to digital data delivery systems. The first, known as MPEG-1 refers to ISO / IEC standards 11172 and is incorporated herein by reference in its entirety. The second, known as MPEG-2, refers to ISO / IEC standards 13818 and is incorporated herein by reference in its entirety. Additional MPEG standards comprise MPEG-4 and MPEG-7, both of which are incorporated herein by reference in their respective entireties. Additionally, the European digital video broadcasting (DVB) standard and othe...

Claims

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Application Information

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Patent Type & Authority Applications(United States)
IPC IPC(8): H04N7/173
CPCH04N7/17318H04N21/64769H04N21/23805
Inventor FREDERICKSON, JAMESTAYLOR, CLEMENT G.
Owner COX COMMUNICATIONS